Cut your prompt's token bill.

TOON (Token-Oriented Object Notation) carries the same data as JSON in typically 30–60% fewer tokens. Paste your data, get TOON, and read the exact savings off the receipt — counted with real tokenizers, right in your browser.

FromToDelimiterFold keys

JSON in

TOON out

Convert something to print your token receipt.

JSON to TOON converterConvert JSON to TOON format online.CSV to TOON converterConvert CSV to TOON format online.YAML to TOON converterConvert YAML to TOON format online.TOON to JSON converterConvert TOON back to JSON online with the official decoder.TOON to CSV converterConvert tabular TOON data to CSV online for spreadsheets and data tools.New to TOON?What the format is, when it wins, and when plain JSON is still the right call.